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1. LU'CA GRMN AND SEED SEPARATOR AND CLEANER.

APPLICATION FILED MAY 23, 1912.

Patented July 22, 1919.

2 SHEETSSHEET I.

J. LUCAS. GRAIN AND SEED SEPARATOR AND CLEANER.

APPLICATION FILED MAY 23, I912.

Patented J My 22, 1919.

2 SHEETS-SHEET 2 ciarr THE COLUMIIIA I'LANOGRAI'H c0., WASHINGTON, n. c.

. v f s w JOHN LUCAS, 0F STOCKTON, CALIFORNIA.

Specification of Letters Patent.

o rnron.

enem nnn snnn SEPARATOR AND CLEANER.

Patented July 22, 1919.

Application filed May 23, 1912. Serial No. 699,182.

To all whom it may concern:

Be it known that I, J OHN LUCAS, a citizen of the United States, residing at Stockton,

San Joaquin county, California, have in-.

vented certain Improvements in Grain and Seed Separators and Cleaners, of which the following is aspecification. y

This invention relates to grain and seed separatingand cleaning machines, and is for the purpose of recleaning and separating diii'erent kinds of grains and seeds in a better and more practicalmanner, and consists of the construction, combination. and arrangement of all its parts, and construction of its auxiliary parts, any one of which, if

incorporated would be beneficial to. other machines of the same class, and therefore,

the invention is the combination-of all its parts, and the construction of its auxiliary or special parts, :as hereinafter shown and described, and specifically pointed out in the specification and claims.

In the drawings forming parts of the specification" the principal features, are the supplying the grain to the force feed, the manner of taking care of the surplus, the under force feed, the adjustment and relief of the feed, the arrangement of the sieves, the construction and means for regulating the under screens, the adjustable detachable catch board, between the screens, and the arrangement of thelower hopper or receptacle of 34-34 to catch or gather the screenings, with a suspended conveyer through the same, to facilitate-the adjusting of the catch board.

Figure 1', consists of a cross section through an auger conveyer, andunder force feed, and means to regulate, and relieve the feed.

1 Figs. 1-2 and 6, show the entire combination, construction and relative position to eachother of the several auxiliary or different. parts that "are necessary to the requirements of the separator and cleaner.

Fig.3. is a perspectivevie'w of the detachable catch board. Fig. 4. is a perspective detail view of Fig. 1. 1

- hereinafter described 1 Fig. 5. is a perspective detail view of th under force feed.

Fig; 6. sheet 2 isa detail front elevation of the cleaner showing auger conveyer 1-33 37 as well as relief spout 38 for the purpose hop-per 40 relating to the supplying of the grain to the force feed. and the taking care of the surplus grain. Figs. 1. 4. and 5. relate to my under force feed. the distinguishing features of which are that it will distribute and feed more or less as required. and in case of a choke up it can be relieved and readjusted, almost instantly while in motion.

The grain to be cleaned and separated is placed in hopper 43. Fig. 6. It enters elevator at 42. and it is then elevated by elevator 44 to auger conveyer 1. that conveys to anddistributes the grain through the full 4 length of'the opening 2. inbottom of conveyer box 1. It is then in receptacle 4. or as much as receptacle 4 will retain. If there ments of the machine as a separator. The

machine can be well supplied with grain and deliver finished products, slow or fast,

- as the occasion may require thereby delivering a uniform gradeof its products in a higher or lower state of perfection as required. The grain can pass around and through the machine any number of times.

Receptacle 4. is composed of board 5 back board 6 at bottom, and the concave corner piece 7 The outer ends of board 6, are inclosed with sheet iron, that slide inside of wooden walls shown in Fig. 4. Receptacle 4. is sustained by its hinges 8.,9. shown in Fig. 5. which are attached to, and swing under conveyer box 1, and are held in position by fiat springs 10 and 11 shown in Fig. 1, Fig. 4, and Fig. 5. .Board 12 shown in Fig. 1. and Fig. 4 isfull length of the under force feed, and it is supported at its mg out over the feed. Under force feed 13, shown in Figs. 1, 4, 5, and 6.,is a spurred shaft, and it is supported, by walls of cleaner, shown in Fig. 6. It is rotated on its axis by a belt so that it drags the grain out at 14. Fig. 1. Levers 15,16, areattached one at each end of board 5, and the outer ends are-made last to slat 17 at 1819 as shown in Fig. 4. Slat 23, is stationary and it is made fast to walls of the cleaner shown in Fig. 6. Hand screws 2021, pass through threaded burrs or nuts attached to slat 23,

larger, and when released it springs back to the gage set by hand screws 20 2l.

' In the drawings, after the grain is forced out at 14, it falls onto sieves 2425, which form a hurdle. Sieves2627-'28 are a hurdleahd are set at an adjustable inclination and they are held in position-in an appropriate shaking shoe. The light coarse objectionable matter passes over across the top of these sieves, and the heavier and smoother grain passes through. The upper cross bar or slat, oit'sie've 24, 15 made nar- 7 row, and-under it in sieve 25 the slat is deck or covering to the cleaner.

wide, hence the grain passing through sieve 24, the lighter and rougher is slower, the heavy and smoother seeks the bottom and accumulates on the wide slat, before passing onto the sieve 25 thereby facilitating the better flooding andseparating of the grain, on the sieve 25. In the sieves 26, 27 and 28, the slats are alternately narrow and wide as shown. In Fig. 2, 1, shows the edge of the 2, is a roller curtain fixture that takes up the cur- Gain, 3*, provided with a slat at bottom, and with the side walls shown in-Fig. 6 sheet 2, forms a hood over the sieves 24, 25, 26, 27, and 28. The wind or air currentfrom the fan passes out on a direct line from the fan to and below the curtain thereby preventing the air current from interfering with the grain on the upper portion of the sieves or hurdles, as well as causing the air to be compressed inthe hood, and'thus have a bearing down eflect on the grain, thereby holding it down fiat on the sieves. When necessary the curtain may be raised to admit otthe "air current passing through higher up on the sieves.

In my invention I have a new construe tion of a hurdle of screens, comprisin a series of superimposed inclined parallel shaking screens each screen being supported at its ends by imperforate shelf members, the shelves at the upper'ends ofthe screens alternating width from narrow to broad downward through the series, (when possible) and the grain passing downward through the upper ends of the screens finds little lodgment on the narrow shelves, and causes less flooding, and it has more agitation, although itdoes lodge and gathers depth on the broad "shelves when passing over them to the alternate screen, thereby producing more capacity and a better flooding of the alternate screens' The narrow shelves are for the purpose of supporting the wire netting only. I

A new construction for under screening. This construction provides a wider range for grading'and fine screening of the grain, after ithas passed through coarser sieves above to fine *screens 29-30, detachable catch board 31, hopper 'or gatherer 345434., and auger conveyers 32 33 and 37 as shown in-Figs. 2 and 6., although it forms and the lower part of my improved separator and cleaner. I wish 'to claim it broadly as such itis tho htwouldbe an improve ment in any cleaner of its class. i

Fine {screens 29- 30, and d ta'chabl'e catch board Share held in slides or'grooves, of an appropriate shaking shoe, and each is-adjustable, and may be moved toward or from conveyer 82-, or either can be removed as required obtaining 'thereby'different results. Thus if fine screen 29, and catch board 31, (as shown in. Fig. 2) are moved in their grooves toward conveyer 32., they would I catch less of and a cleaner grain from sieves 26 27 -28 where they are better flooded. The grain from said sieves isthen carried over screen 29, and delivered finished at 32., and catch board 31, makes it possible and does carry the screenings from. screen 29, over conveyer 33, and delivers them in screenings hopper 34, at"35., thereby pre venting if so desired the screenings from screen 29, from mingling with seconds on screen "30. Fine screen 30 would then catch more seconds or middlings to be returned by conveyor, 33, to be worked over. If screen 30 were moved in its grooves towardconveyer 33, it would catch less seconds putting more or all of them if desired into screening hopper 34, at 36. The seconds caught from lower end of sieve 28, are delivered by screen 30, to conveyer "33 and are carried back to the elevator to be worked over. Screenings from screen 30, drop into hopper 34, at 36, thereby with the use of the catch board 31 between the screen 29 and'30, itis possible to divide the grain tobe screened, each division passing over the separate screens, the board 3-1 keeping thescreenings that pass through screen-29, from reentering, or falling on to grain thatis on -scre'en 30., thereby nearly doubling the screening capacity of the under shoe, which'werks well in grading barley.

If the greater part ofrthe barley-or other grain is to be saved, and amore thorough screening" is required, let fine :scr'eens 29f30., and catch board 31, I remain as shown lnFlg. 2, but remove catch board 31, and the screenings from screen 29., fall on screen 30, and areNrescreened byscreen 30., thereby reducing screenln'gs'to a m1n1- mum.

to claim broadly as it forms a means, to get the screening away from two parallel screens. In the drawing Fig. 6, 5. is a relief opening in the elevator, and grain emanating from it slides back into the. receiving hopper, it is not only a reliefto the elevator in eeping it from clogging and jannning with grain, but it, has great functionalproclivities for assisting in the mixing of the uneven conditions of mixed grain.

Having thus described my invention I claim f 1. In a machine of the character described the combination of a feeding device and superimposed inclined shaking hurdles below said feeding device an inclined shaking shoe below and receiving from said hurdles and comprising upper and lower screens of a different mesh, with an adjustable catch board between the lower two screens and separate conveying receptacles receiving from each of said screens and from said catch board substantially as and for the purposes set forth. a a

2. In a device of the character described, the combination of superimposed inclined shaking hurdles, an inclined shaking shoe below and receiving from said hurdles and comprising upper and lower screens of a different mesh with an adjustable catch board between the lower two screens sub stantially as and for the purpose set forth.

3. In a device of the character described the combination of superimposedpinclined shaking hurdles an inclined shaking shoe below and receiving from said hurdles and comprisingupper and lower screens of different mesh each of said lower screens being adjustable in the direction of its length and an adjustable catch board intermediate said screens substantially as and for the purpose set forth.

4. In a device of the character described the combination of superimposed inclined shaking hurdles an inclined shaking shoe below and receiving from said hurdles, comprising upper and lower screens of a different mesh, each of said lower screens being adjustable in the direction of its length, an

adjustable catch board intermediate said screens and separate conveying receptacles from each of said screens and from said catch board substantially as and for the Auger conveyer 33L suspended or passing through hopper or gatherer 34,-3l., I wish the combination of superimposed and inclined shaking hurdles, an inclined shaking shoe below and receiving from said hurdles, a hood over said hurdles, and an adjustable curtain at the discharge end of said inclined hurdles, that may be raised or lowered, when necessary to regulate the air currents that emanate from thefan; substantially as and for the purpose set forth.

6. A hurdle comprising a series of superimposed inclined parallel shaking screens, each screen being supported at its ends by imperforate shelf members, the shelves at the upper ends of the screens, alternating in width from narrow to broad downward through the series, substantially as and for the purpose set forth.

7. A hurdle comprising a series of superimposed inclined parallel shaking screens it each screen being supported at its ends by imperforate shelf members, the shelves at the upper ends of the screens, alternating in width downward from narrow to broad and broad to narrow to broad as shown, substantially and for the purpose set forth.

8. In a machine of the character described, in combination, a receiving hopper, an elevator, a distributing conveyer, a feeding device, superimposed inclined shaking hurdles, a relief spout, a returnconveyer and a secondary hopper all constructed and arranged in such manner that grain placed in the receiving hopper is elevated to the distributing conveyer, and delivered to the feeding device the surplus passing on and descending the relief spout to the return conveyer which carries it with overflows from the shaking hurdles to the secondary hopper which feeds it back into the elevator preceding grain in the receivinghopper.

9. In a machine of the character described the combination of a feeding device and superimposed inclined shaking hurdles an inclined shaking shoe'below and receiving from said hurdles, and comprising upper and lower screens with an adjustable catch board between the lower two screens of the lower shoe and separate conveying receptacles from each of said screens, and a lower receptacle to receive from the catch board and from under the lower screen, substantially as shown and for the purpose set forth.

10. In a machine for separating uneven mixtures of mixed grain, a separating device, a distributing device capable of delivering a surplus of grain to insure a flooding of the separating device, means for returning the surplus grain and grain from the separating device to the distributing device, together with a sufficient supply of additional grain, wherebya supply of grain is maintained in the machine and the feed to the separating device is equalized.

11. In a grain separating and cleaning machine, separating and cleaning devices, In testimony whereofSI have hereuinto set means for equalizing the conditions of my hand and seal this 25th day of March, mixed grain, consisting of means for return- 1918. a i ingto the separating and cleaningdevices. JOHN LUCAS. part of the grain" which has been treatedi'by In presence 0f-" a a 1 n them, in association with but ahead of a IRENE MCCARTY,

fresh equalizing supply of grain. CHAS. P. MCALMQND;

Copies of this patent maybe obtained for five cents each, by. addressing the Commissioner of Patents, Washington, ID. G. a M i 

